Rotary internal-combustion engine.



L. HAUBNBR;

ROTARY INTERNAL COMBUSTION ENGINE.

APPLIGATIOI! FILED MAR.30,1912.

Patented NOV. 5, 1912.

Kw m 6 .w H HM In 3 MN n 12 u Q Z G H w N s 6% 5 Q My a N QQ N w m/ appertains to UNITED STATES PATENT OFFICE.

Louis nannies, or Lennon, nnenann.

.ROTABY INTERll'AL-COIIBUSTION Ell'G-INE.

Specification of Letters Patent.

Patented Nov. 5, 1})12.

To all whom "it may concern: s

Be it known that I, LoUIs HA BNER, a

subject of the King of-England, residing at London, in the county of Middle'sex, Eng land, have invented certain new and useful Improvements in Rotary Internal-Combustion Engines; and I do hereby declare the following to be a full, clear, and exact de-' scription of the invention, such as will enable others skilled in the art to wh1c'h 1t ake and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification. 1 y

This invention has-reference to rotary internal combustion engines, of the kind in which the cylinders .are radially disposed and rotate in one direction and the shaft in the other direction, and the 'two parts are geared with a stationary part, while each of shaft, while the invention also hasreference to rotary internal combustion englnes, having' radially disposed cylinders each fitted with a valve for controlling the inlet and exhaust, and cams and leversfor operating the valve from. the shaft.

One ofthe objects and effects ofthe invention, is to provide an improved arrangement of parts particularly serviceable in connection with aeronautical machines provided with propellers, and enable propellers having blades of maximum pitch to be employed to advantage. I

Another object and effect is to provide an improved engine of the kind referred to", with an improved arrangementof, parts of improved construction whereby the parts are easily and quickly assembled and taken apart.

I description.

Under this invention the valve with which each cylinder is provided and which-serves to open and close the port for both the inlet and exhaust, is positively controlled by a cam or eccentric and this valve is not only positively controlled but is so actuated that it is held open during the inlet and exhaust strokes of the piston, and thereby the pressure within the cylinder is equiva-' lent to atmospheric pressure during the time of such strokes. Further, the fuel is lnclose the crank shaft, the gearing for ef-- fecting the rotation of the cylinders in an opposite direction tothat of the shaft, the

cams or eccentrics for positively actuating the valves of the'cylinders and the ball bearings-of the,casing and cylinders.

A rotary internal combustion engine constructed according to this invention is hereinafter described with reference tothe accompanying drawings, in which,

Figure l is a horizontal sectional view of the engine. Fig. 2 is a sectional elevation, and Fig. 2 an under plan, of a compound J plug. Fig. 3 is a side elevation partly in section of a piston ring.

In the drawings, a designates the shaft of the engine, and a the crank portion thereof, whichis disposed in the crank casing 6, of the engine, and is connected with the pistons c, of cylinders (Z by a compound crank head 6, which is adapted to receive the rings k are adjustably connected with levers iwhi ch are pivotally mounted at i and.

serve to support thevalves g from a pivot pin 9 Rods'c' which serve to connect the cam rings 7L1 with the levers z, are pivotally' connected at i"v tothe levers 2', and are also adjustable longitudinally at this end, through the medium of. a nut '5 in the pivot connection a", and the screw threaded end of the rod 11 A convenient means of connecting the rods 15 with the cam rings k is shown at h. p

7 The pistons 0 are mounted within the cylinders d, and the connecting rods fare conncted to the crank a by pins 0. The

p when firing takes-place.

pistons c are each provided with a packing ring 0 shown to an enlarged scale in Fi 3. These rings a comprise enlarged portions 0 adapted to take into annular recesses formed in the outer surfaces of the pistons c, and gradually reduced portions 0, the

It is known in connection with internal combustion engines for high speeds, that the cylinders, owing to their light structure, and to the different temperature of one part relatively to the other part, that the cy1- inders when in use, are not exactly of circular forms, in cross section, being distorted by such conditions, and by the strain and other eifectsthereon; further, the pistons and ,the known forms of rings employed in connection therewith are not so constructed as to give and take to the slight variations in the forms of the cylinders,due to the distortion by the effects previously mentioned,and thus leakages occur, especially with engines for high speeds; but by the employment of rings as herein described with reference to-the drawings, these leakages are entirely obviated. r Piston rings constructed as above described, with reference to Fig. 3, are easily pressed out against the inner surfaces of the cylinders 01, and enable a gas tight, yet working fit to be obtained, and prevent any losses during the working of the engine by leakages or the like above referred to. In constructmg such a pis'tonring,-it is cut through as shown at 0 (Fig. 3), and such cut is sol- .dered together, and after this has been effectedjithe ring is fashioned to the form shown 11 the'drawings. that is, it is turned or otherwise shaped, with the enlarged portion 0, and reduced portion a. After the ring has been produced in this manner, and has been fitted inposition, the soldered-portion a is. heated, and the ring allowed to sprlng open,*and thus enable a gas tight, fit to be obtained.

As previously stated, the cylinders are adapted to rotate in the direction opposite to that of the shaft, and for this purpose the crank casing bis fitted with planet wheels j, which are carried by the ins 7' fixed in the crank casing b. Each 0 the planet wheels engages or gears with a stationary sun wheel 7c and a rotary .sun wheel Z. The stationary sun wheel is is connected to'a sleeve m which is-fixed to the general framing n of the engine. lhis framing n, is stationary, and thus when the istons c are actuated, and the shaft a rotate ,the rotary tooth wheel keyed thereto, serves .to impart rotary motion to the toothed wheel this has for effect to rotate the cylinders and parts connected therewith, in a direction opposite to that in which the shaft rotates, such rotation being obtained through the toothed or planet wheels j enga ing with the stationary sun wheel is. It wil be obvious that this gearing may vary and have for effect to vary the number of strokes of the piston for each revolution of the engine, and the shaft; although in the construction illustrated, each cyhnder is. caused to complete'one revolution around i .the axis of the shaft in one direction, and

the shaft a complete revolution in the opposite direction, to a complete cycle of operations, such cycle being a four stroke cycle of the known kind.

The sleeve member an has a passage m formedin it, and this passage at one end, is arranged in communication witha connection m which is carried in'the general framin of the engine, and is connected with a tu e m and a source of supply of the liquid fuel such as a petrol tank. The opposite end of'the passage m communicates with a circular recess or chamber 0, formed in a rotary member 0 and arranged in communication with supply conduits 0 connected by detachable connecting devices 0 with the compound plugs previously referred-to, and *particularly shown in Figs. 2 and 2. These .gom ound plugs have liquid fuel orificeso tte against their seats p by spring members with smfting valves p, lightly held the tension of which is of nuts 7).

Adjacently to the front of each of the snifting valves p, are disposed the contact oints g of the sparking device, these points ein connected with the wire or rod q passing through the insulating plug 9 seadjustable by means as I cured in the compound plug by means of a nut q. The contact points are connected through the wire or rod q, and a terminal member gfl with the lead 9, which is con-- nected wlthfacontact plate 9 carried by the rotary member 0 The magneto (which is not shown) is suitably connected with a brush contact device r, which is preferably spring pressed, and is carried by the general frame n and adaptedto bear against the contact plate 9 previously referred to. The rotary member 0 is rendered liquid tight on the sleeve m by means of packlng plugs 0*.

The cylinders and other rotary portions of the cylinders are carried on ball bearings a disposed on the shaft a, while the cam members h are disposed in the casing 12 forming a part of the crank casing, and provided with apertures b for the passage of the rods connecting the valve levers with the cam -1,o4a;use ings. This casing b is fitted with an end inlet and exhaust port, means for moving over I) for inclosing the parts. the combined air inlet an exhaust valve, a The crank casing b is preferably com fluid inet valve fitting in the fuel inlet port, posed of two halves or side portions which a spring for normally closing said valve, a so are bolted together by means of bolts occurmber rotating with the cylinder,- a ring between each of the c linders, so t a duct comm nicating with the fuel inlet port the various parts of the engine can be easily and the chamber, the parts bein osition on the ranged and timed that the fuel inlet valve s away from 35 and quickly mounted m p members is opened when shaft (1, and at the same time such or portions are ely small number.

that each. cam

It will be seen in member or portion is adapted to actuate two awa diametricall disposed valves. and returning toward the same What is claimed is'.-'- stroke, said latter va ve bei g closed when 40 ompristhe piston is in the position of closest proxto the same, the spring serving to c ose let valveimmediately the piston starts to: return toward same...

I on whereof I have signed naythe presenee: of."

mbustion engine c d forrotation, a 'cylinimity the axis 0 7 connecting t e 5 I An internal co mg a shaft ournale one direction oppositedirectiomapis in the cylinder, sai W outerend a' combined a inlet pmdna co m t.

' unted in the eyls a .JT. Gau'rmrm.

. 01st and inlet and exlflaaast.x valve me i inder and adapted to close the combined aar 

